[linux-audio-dev] Real time delay tutorials?

[Lee Revell]

On Wed, 2005-07-13 at 12:12 -0700, Iain Duncan wrote:
> > In realtime critical applications people prefer RTLinux or the RTAI extension
> > to the kernel for periods and scheduling latencies in the low  microseconds 
> > range  (<30 microseconds worst case scheduling latency on recent x86 
> > hardware).
> 
> I've often wondered about that. Why are those sorts of kernels 
> inappropriate for audio? ( Just out of curiousity. )

Too heavy.  Those systems are designed for things like machine control
where the machine gets damaged if you miss a deadline.  A few hundred
microseconds is good enough for audio, and it only has to be at least as
reliable as the rest of your gear.

Lee